Search results for "FS"
showing 10 items of 1992 documents
The role of immune response in ageing and longevity. A focus on B cell compartment
2017
The improvement of the quality of life of elderly people is going to become a priority because of the continuous increase in the number of centenarians. This render the studies of the processes involved in ageing of critical importance. Centenarians are a widely accepted model of successful ageing, a complex process which is influenced by several biological, environmental and lifestyle factors, because they have reached the extreme limits of life span overcoming the major age-related diseases. In centenarians model, several aspects have been studied, as inflammation, immune system, genetics and metabolism, to understand the secret of their long survival. It has been proposed that centenaria…
B CELL CHANGES IN AGING
2014
The aging of the immune system is a gradual and dynamic process that modifies some immunological functions. These changes are known as “immunosenescence” that have a great impact on immune performance in late life, contributing to the decreased ability of the elderly people to respond to emerging pathogens and to the decreased responsiveness to vaccinations. It is known that the adaptive immune functions are affected in the aged. In particular, with aging, the acquired compartment of the immune system shows significant modifications in both T and B cell branches. Thus, the adaptive immune response of elderly people is qualitatively and quantitatively reduced when compared to that observed i…
Neurophysiological and ultrasonographic exams in nerve patologies: diagnostic work-up and monitoring.
2013
Introduzione: le patologie dei nervi sono causa di disabilità nella popolazione giovane adulta affetta e motivo di contenzioso medico-legale per molti chirurghi. Obiettivi: valutare la rilevanza dell’ecografia del nervo e dell’esame neurofisiologico nella valutazione prechirurgica e nel follow-up post-chirurgico ai fini diagnostici, prognostici e di adeguata programmazione terapeutica. Materiali e Metodi: pazienti con patologia da intrappolamento o post-traumatica sono stati sottoposti a valutazione clinica, neurofisiologica ed ecografica. Risultati: abbiamo studiato 50 neuropatie (25M, 25F): 23 nervi mediani, 1 interosseo anteriore, 14 nervi ulnari, 3 plessi brachiale, 2 interossei posteri…
Un caso di disfonia severa provocata da una lesione monolaterale iatrogena del nervo laringeo ricorrente Considerazioni medicolegali
2013
di un intervento di emitiroidectomia, a causa di una lesione del nervo laringeo ricorrente di sinistra, riferibile ad una condotta colposa del chirurgo. Vengono considerati i risvolti medicolegali, porgendo particolare attenzione alla questione relativa al risarcimento cui l’operatore sanitario è obbligato, nei confronti del soggetto danneggiato. Tale compenso è stabilito in rapporto alla menomazione della funzione fonatoria subita dalla persona lesa e, pertanto, si riferisce non solo all’alterazione dell’integrità psicofisica e alle eventuali ripercussioni esistenziali che una tale condizione può determinare sulla qualità della vita, ma finanche alle conseguenze economicamente valutabili d…
It takes two to tango
2003
Abstract In most taxa, females are more likely than males to care for offspring. Why? Ever since Trivers' landmark work, the answer has been traced back to sexual differences in pre-mating reproductive investment (unequal gamete size or anisogamy). However, recent work shows that parental investment theory has inadvertently ignored a profoundly simple fact of life: every offspring has a mother and father. Taking this into account completely changes how we should think about sex differences in parental care.
Evolutionary processes in the emergence and recent spread of the syphilis agent, Treponema pallidum
2022
Abstract The incidence of syphilis has risen worldwide in the last decade in spite of being an easily treated infection. The causative agent of this sexually transmitted disease is the bacterium Treponema pallidum subspecies pallidum (TPA), very closely related to subsp. pertenue (TPE) and endemicum (TEN), responsible for the human treponematoses yaws and bejel, respectively. Although much focus has been placed on the question of the spatial and temporary origins of TPA, the processes driving the evolution and epidemiological spread of TPA since its divergence from TPE and TEN are not well understood. Here, we investigate the effects of recombination and selection as forces of genetic diver…
Evaluation of Daylight Availability for Energy Savings.
2015
Dynamic daylight simulations are very useful instruments in daylighting design process. They allow an in depth analysis of indoor daylight availability levels and define if they are adequate to perform a particular visual task. Their results can be used to design shading devices or lighting control systems and compare different technical solutions. The use of these simulations is likely to spread in the common design practice since some regulations and green building rating systems suggest their use. This paper presents dynamic daylight simulation results related to an open-plan office, performed with Autodesk 3ds Max Design ® , which is a calculation software validated by recent researches…
Prehatching maternal investment and offspring immunity in the pied flycatcher (Ficedula hypoleuca).
2007
Maternal investment in offspring immunity via egg quality may be an adaptive evolutionary strategy shaped by natural selection. We investigated how maternal investment in eggs can influence offspring immunity by conducting two experiments. First, we manipulated foraging performance of the mothers before egg laying by attaching a small weight to their back feathers. During the nestling period, we investigated offspring total antibody production at the age of 7 days and after antibody challenge, and conducted a partial cross-fostering design to separate the effects of the experiment and rearing-related variation on offspring immunity. In a separate experiment, partial cross-fostering with ant…
Verzeichniss der Rigaer See- und Fluss-Schiffe, 1908
1908
Inhalt: Verzeichniss der Rigaer See- und Fluss-Schiffe ; See-Dampfer ; Bugsir- und Fluss-Dampfer.
Verzeichniss der Rigaer See- und Fluss-Schiffe, 1909
1909
Inhalt: Verzeichniss der Rigaer See- und Fluss-Schiffe ; See-Dampfer ; Bugsir- und Fluss-Dampfer.